<template>
  <view class="cart-container" v-if="cart.length!==0">
    <!-- 商品地址 -->
    <my-address></my-address>
    <!-- 购物车商品列表的标题区域 -->
    <view class="cart-title">
      <!-- 左侧的图标 -->
      <uni-icons type="shop" size="23"></uni-icons>
      <!-- 描述文本 -->
      <text class="cart-title-text">购物车</text>
    </view>
    <!-- 商品区域 -->
    <uni-swipe-action>
      <block v-for="(item,index) in cart" :key="index">
        <uni-swipe-action-item :right-options="options" @click="swipeActionClickHandler(item)">
          <myGoods :item="item" :showRadio="true" :showNumberBox="true" @radio-change="radioChangeHandler"
            @num-change="numberChangeHandler"></myGoods>
        </uni-swipe-action-item>
      </block>
    </uni-swipe-action>
     <!-- 结算区域 -->
        <my-settle></my-settle>
  </view>
  
    <!-- 空白购物车区域 -->
  <view class="empty-cart" v-else>
    <uni-icons type="cart" size="100" color="gray"></uni-icons>
     <text class="tip-text">空空如也~</text>
  </view>
   
    
</template>

<script>
  import badgeMix from '@/mixins/tabbar-badge.js'
  import myGoods from '@/components/my-goods/my-goods.vue'
  import {
    mapState,
    mapMutations
  } from 'vuex'
  export default {
    components: {
      myGoods
    },
    mixins: [badgeMix],
    computed: {
      ...mapState('cart', ['cart'])
    },
    data() {
      return {
        options: [{
              text: '删除', // 显示的文本内容
              style: {
                backgroundColor: '#C00000' // 按钮的背景颜色
              }
            }]
      }
    },
    methods: {
      ...mapMutations('cart', ['updateGoodsState', 'updateGoodsCount', 'removeGoodsById']),
      // 商品的勾选状态发生了变化
      radioChangeHandler(e) {
        this.updateGoodsState(e)
      },
      // 商品的数量发生了变化
      numberChangeHandler(e) {
        this.updateGoodsCount(e)
      },
      // 点击了滑动操作按钮
     async swipeActionClickHandler(item) {
        const[err,res]=await uni.showModal({
          content:'是否删除商品？'
        })
        if(res.confirm){
          //删除
          this.removeGoodsById(item)
        }
      }
    },

  }
</script>

<style lang="scss" scoped>
  .cart-container{
    padding-bottom: 100rpx;
  }
  .cart-title {
    height: 100rpx;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36rpx;
    font-weight: bold;
    border-bottom: 1rpx solid #efefef;
    .cart-title-text {
      margin-left: 20rpx;
    }
  }
  .empty-cart{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-top: 300rpx;
     .tip-text {
        font-size: 35rpx;
        color: gray;
        margin-top: 20rpx;
      }
  }
</style>
